Slimlins - What are they and what do they do?
Since I've been out to site I've seen a couple of building problems when it comes to lintel spans over openings. Like this example above: The lintel used to span the opening of the garage door. It seems that the lintel is bending under the pressure and now a prop is needed to keep it in place...
Ideal = I don't think so but what is the alternative?
We have been approach by a well known company in town namely 'Algoa Cement' http://www.algoacement.co.za/
This company has come to the conclusion that 'normal lintels' do not make the additional span to overlap and carry the weight of brickwork. In the following example they are making use of 'concrete beams'...
- Longspan lintels supply Slimlins in sets of 3 bems (2 x A and 1 x B) in standard lengths of 5400mm to suit door apertures of 4800mm. (Beams can be supplied cut to shorter lengths)
- The supporting columns or wing walls must be constructed with minimum 7 MPA bricks and blocks and must be well cured (3 – 5 days) (start construction of this side of garage first so you won’t be held up)
- Set up secure scaffold and heavy duty boards to accommodate required lifting crew for placing manually .Longer beams may require a crane or lifting tackle which can be provided.
- Beams must be lifted with two slings on a spreader bar when using a crane or tackle.
- Set up and line up two SLIMLIN (A) Beams taper up to the outside and one (B) Beam taper down in centre, as per cross section.
- Tie together with binding wire either and secure on wing walls.
- Tap in three laminating galvanised steel bushes to three centre holes.
- Place first course of brickwork over SLIMLINS as a header course.
- Place brickforce in mortar joint above and in every 4th mortar joint thereafter.
This is a new product I look forward to see out on site. Definitely more affordable than the normal 'Engineered beam' and also more user friendly.
Feel free to contact 'Algoa Cement' on this latest product...
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